Webster's Revised Unabridged Dictionary · 1913

Salutatory

Salutatory , adjective

[Latin salutatorius. See Salute.]

Containing or expressing salutations; speaking a welcome; greeting; -- applied especially to the oration which introduces the exercises of the Commencements, or similar public exhibitions, in American colleges.

Salutatory , noun

1.
A place for saluting or greeting; a vestibule; a porch. [Obsolete] — Milton
2.
(American Colleges) The salutatory oration.